Profit warnings from industrial heavyweights Rolls shares dived 14% and Tate was 16% lower, while
The pound strengthened against the US dollar, standing at 1.66 , but the sterling was slightly lower against the single currency at 1.21.
Rolls and Tate were by far the biggest fallers of the session after their profit alerts.
Shares in engines giant Rolls dived 165p to 1045p after it warned that profits and revenues will fail to grow this year as a result of defence spending cuts.
There was a similar reaction to guidance from sweeteners and food ingredients business Tate that tough trading conditions in established markets meant profits would be flat in the current year.
Shares slumped 126.5p to 660p as it also highlighted the prospect of weaker sucralose prices.
Sentiment towards the bank has been impacted by the continued rising bill for payment protection insurance mis-selling and the City's wait for a restoration in dividend payments, with the stock down 2.2p to 81.3p.
Engineering and project management company
The biggest fallers were
Profit warnings from industrial heavyweights
Rolls shares dived 14% and Tate was 16% lower, while